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GB179641A - Improvements in or relating to locking devices for electric incandescent lamps - Google Patents

Improvements in or relating to locking devices for electric incandescent lamps

Info

Publication number
GB179641A
GB179641A GB447521A GB447521A GB179641A GB 179641 A GB179641 A GB 179641A GB 447521 A GB447521 A GB 447521A GB 447521 A GB447521 A GB 447521A GB 179641 A GB179641 A GB 179641A
Authority
GB
United Kingdom
Prior art keywords
catch
collar
relating
bayonet
locking devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB447521A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHARLES DUNGLINSON
Original Assignee
CHARLES DUNGLINSON
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHARLES DUNGLINSON filed Critical CHARLES DUNGLINSON
Priority to GB447521A priority Critical patent/GB179641A/en
Publication of GB179641A publication Critical patent/GB179641A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/97—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held
    • H01R33/973—Holders with separate means to prevent loosening of the coupling or unauthorised removal of apparatus held for bayonet type coupling devices

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

179,641. Dunglinson, C. Feb. 8, 1921. Bayonet-joint fastenings; fastenings, magnetic. -Electric lamp bulbs h of the bayonet-cap type are locked in their holders i by means of a collar a having a spring catch d hidden in an internal recess b and adapted to engage in one of the bayonet slots k to close it, the catch being withdrawable by means of a magnet. An aperture is formed in the periphery of the collar immediately behind the nose of the catch d and is closed by an iron disc g, which may either be formed as a plug, as shown in Fig. 3, or be attached to the catch. To release the catch, the pole m<2>, Fig. 8, of an electromagnet is applied to the disc g, the magnet being provided with arms m<1> to engage the collar.
GB447521A 1921-02-08 1921-02-08 Improvements in or relating to locking devices for electric incandescent lamps Expired GB179641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB447521A GB179641A (en) 1921-02-08 1921-02-08 Improvements in or relating to locking devices for electric incandescent lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB447521A GB179641A (en) 1921-02-08 1921-02-08 Improvements in or relating to locking devices for electric incandescent lamps

Publications (1)

Publication Number Publication Date
GB179641A true GB179641A (en) 1922-05-08

Family

ID=9777873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB447521A Expired GB179641A (en) 1921-02-08 1921-02-08 Improvements in or relating to locking devices for electric incandescent lamps

Country Status (1)

Country Link
GB (1) GB179641A (en)

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